When a deprecated blueprint containing an object is moused over in the content browser the output log is spammed with the message

 LogSpawn:warning: SpawnActor failed because class BP_Deprecate_C is deprecated

This only happens when an object is inside the blueprint and this leads me to believe it has to do with the thumbnail rendering process trying to access deprecated objects

Steps to Reproduce
  1. Create a blueprint based off an actor
  2. Open new blueprint
  3. Use the Add Component dropdown to add a cylinder
  4. Enable Deprecated and then compile (Class Settings > Class Options > Advanced drop down)
  5. Mouse over content browser

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ComponentUE - Gameplay - Blueprint
Affects Versions4.
Target Fix4.22
Fix Commit4535828
Main Commit4736445
Release Commit4862694
CreatedOct 3, 2016
ResolvedNov 2, 2018
UpdatedFeb 12, 2019